Coordination architectures of large heavy metal cations (Hg2+ and Pb2+) with bis-tridentate ligands: Solution and solid-state studies

Date publication

janvier 2007

Auteurs

Membres identifiés du Cancéropôle Est :
Pr LEHN Jean-Marie

Tous les auteurs :
Ramirez J, Stadler AM, Harrowfield JM, Brelot L, Huuskonen J, Rissanen K, Allouche L, Lehn JM

Résumé

Solution and solid state studies of the complexation of Hg2+ and Pb2+ by the homologous bis-tridentate ligands 1 and 2H(2) obtained by condensation of bis(methylhydrazino)phenylpyrimidine and bis(hydrazino)phenylpyrimidine, respectively, with pyridine-2-carboxaldehyde, have provided evidence for the formation of both grid and rack species. With Hg2+, there is little indication for other than grid species, the grid complex [Hg-4(2H(2))(4)](CF3SO3)(8) being characterised crystallographically. With Pb2+, the only crystalline species readily isolated are rack complexes of the ligands I and 2H(2).

Référence

Z Anorg Allg Chem. 2007;633(13-14):2435-44